PostgreSQL.connect_database
- PostgreSQL.connect_database(database_name=None, verbose=False)
Establish a connection to a database.
- Parameters
database_name (str or None) – name of a database; when
database_name=None
(default), the database name is input manuallyverbose (bool or int) – whether to print relevant information in console as the function runs, defaults to
False
Examples:
>>> from pyhelpers.dbms import PostgreSQL >>> testdb = PostgreSQL('localhost', 5432, 'postgres', database_name='testdb') Password (postgres@localhost:5432): *** Creating a database: "testdb" ... Done. Connecting postgres:***@localhost:5432/testdb ... Successfully. >>> testdb.connect_database(verbose=True) Being connected with postgres:***@localhost:5432/testdb. >>> testdb.connect_database(database_name='postgres', verbose=True) Connecting postgres:***@localhost:5432/postgres ... Successfully. >>> testdb.database_name 'postgres' >>> testdb.connect_database(database_name='testdb', verbose=True) Connecting postgres:***@localhost:5432/testdb ... Successfully. >>> testdb.database_name 'testdb' >>> testdb.drop_database(verbose=True) # Delete the database "testdb" To drop the database "testdb" from postgres:***@localhost:5432 ? [No]|Yes: yes Dropping "testdb" ... Done. >>> testdb.database_name 'postgres'